Browse

Cortical bone thickness and root proximity at mandibular interradicular sites: implications for orthodontic mini-implant placement
하악의 교정용 미니 임플랜트 식립 부위에서의 피질골 두께와 치근간 거리: 3차원으로 재구성한 CT 영상을 이용한 연구

Cited 11 time in Web of Science Cited 0 time in Scopus
Authors
Lim, Ju-Eun; Lim, Won-Hee; Chun, Youn-Sic
Issue Date
2008-12
Publisher
KOREAN ASSOC ORTHODONTISTS
Citation
KOREAN JOURNAL OF ORTHODONTICS, Vol.38, No.6, pp.397-406
Keywords
Mini-implantCortical bone thicknessRoot proximity
Abstract
Objective: The purpose of this study was to provide clinical guidelines to indicate the best location for mini-implants as it relates to the cortical bone thickness and root proximity. Methods: CT images from 14 men and 14 women were used to evaluate the buccal interradicular cortical bone thickness and root proximity from mesial to the central incisor to the 2nd molar. Cortical bone thickness was measured at 4 different angles including 0 degrees, 15 degrees, 30 degrees, and 45 degrees. Results: There was a statistically significant difference in cortical bone thickness between the second premolar/first permanent molar site, central incisor/central incisor site, between the first/second permanent molar site and in the anterior region. A statistically significant difference in cortical bone thickness was also found when the angulation of placement was increased except for the 2 mm level from the alveolar crest. Interradicular spaces at the 1st/2nd premolar, 2nd premolar/1st permanent molar and 1st/2nd permanent molar sites are considered to be wide enough for mini-implant placement without root damage. Conclusions: Given the limits of this study, mini-implants for orthodontic anchorage may be well placed at the 4 and 6 mm level from the alveolar crest in the posterior region with a 30 degrees and 45 degrees angulation upon placement. (Korean J Orthod 2008; 38(6):397-406)
ISSN
1225-5610
Language
Korean
URI
http://hdl.handle.net/10371/80453
DOI
https://doi.org/10.4041/kjod.2008.38.6.397
Files in This Item:
Appears in Collections:
College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse